# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 803 - 809 of 931

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## Question 803

### Question

MCQ▾

A rectangular park 60 m long and 40 m wide has concreate crossroads running in the middle of the park and rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road?

### Choices

Choice (4)Response

a.

3 m

b.

4 m

c.

6 m

d.

5 m

## Question 804

### Question

MCQ▾

Which number will replace the question mark?

### Choices

Choice (4)Response

a.

30

b.

24

c.

22

d.

26

## Question 805

MCQ▾

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 806

### Question

MCQ▾

The average of 9 numbers is 8. What should be added as 10th number to make the average 9?

### Choices

Choice (4)Response

a.

10

b.

90

c.

18

d.

72

## Question 807

### Question

MCQ▾

Two distinct ________ in a plane cannot have more than one point in common

### Choices

Choice (4)Response

a.

Points

b.

Lines and points

c.

Lines

d.

None of the above

## Question 808

### Question

MCQ▾

The equation has________

### Choices

Choice (4)Response

a.

Only two solutions

b.

Only one solution

c.

Only three solutions

d.

Infinitely many solutions

## Question 809

### Question

MCQ▾

Which number should come in place of the question mark?

 14 18 12 5 3 5 5 7 ? 75 61 69

### Choices

Choice (4)Response

a.

4

b.

9

c.

6

d.

7